package com.jia.springcloud.service.impl;

import cn.hutool.core.util.IdUtil;
import com.jia.springcloud.dao.PaymentDao;
import com.jia.springcloud.entities.Payment;
import com.jia.springcloud.service.PaymentService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author 1038940655
 * @create 2021/1/21 23:06
 */

@Service
public class PaymentServiceImpl implements PaymentService {

    @Autowired
    private PaymentDao paymentDao;


//    服务降级
    @Override
    public Payment getPaymentById(Integer id) {
        return paymentDao.getPaymentById(id);
    }

    @Override
    public String paymentInfo_TimeOut() {

        int time = 3;

        try{
            TimeUnit.SECONDS.sleep(time);
        }catch (Exception e){
            e.printStackTrace();
        }


        return "线程池："+Thread.currentThread().getName()+"paymentInfo_TimeOut"+"耗时(秒)"+time;
    }


//    服务降级
    @Override
    //服务熔断
    //配置的意思是10秒内发送10次请求，失败率达到60%，开启断路器
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),  //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),   //请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),  //时间范围
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"), //失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if (id < 0){
            throw new RuntimeException("*****id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功,流水号："+serialNumber;
    }


    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能负数，请稍候再试,(┬＿┬)/~~     id: " +id;
    }
}


